The structure is designed to emphasize the plastic qualities of concrete, which has been used throughout. In this scheme the use of steel and concrete has been made to express the characters of both the blocs. The low block is a concrete frame structure with bent roof slab, whereas the tall block is lifted on concrete supports with a steel superstructure having cantilevers of about 10’. These have been introduced to effect economy in structure. Each element of the structure is designed to express the stresses produced in it with consequent flexibility. In order to attain maximum openness on the ground floors of both the low as well as the tall blocks are lifted on pilotis. The supports of the low block are placed so as to form a grid of 40’ X 48’, which his reduced on upper floors as shown on the drawings. The supports of the tall block are placed at 36’ apart at the ground floor, branching out on upper floor to support steel column at 18’ centers. The structure of the Council Chamber is so designed that the roof is a shell supported at three points on the floor, which in turn is supported on three columns.1

• 1. All citations from Kanvinde, Achyut. Design: City Hall and Square in Competition Entry for the Design of a Civic Square and City Hall. Toronto, 1957.